Automatic storm-sash operator



Feb. 3. l1925. 1,524,716

c. w. KNIGHT AUTOMATIC STORM SASH OPERATOR Filed Oct. 19, 1922 PatentedFeb.. 3, 1925.

U i'r E rezan CHARLES W. KNIGHT, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR TORALPH, T. KNIGHT, OF MINNEAPOLIS, MINNESOTA.

AUTOMATIC STORM-SASH OPERATOR.

Application filed October 19, 1922. Serial No. 595,568.

T 0 all whom it mr/,y/ concer/lb:

Be it known that I, CHARLES, W. KNIGHT, a citizen of the United States,residing at Minneapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements inAutomatic Storm-Sash Operators; and I do hereby declare the following tobe a full, clear, and exact description ot' the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to automatic storm sash operators of the type whichconnects an inside sliding window sash to a swinging storm sash, wherebythe opening and closing movements of the window sash will impart likemovements to the storm sash,thus avoidingthe effort and inconvenience ofopening and closing t'he storm sash independently of the opening andclosing of the window sash.

The. pri mary object of my invention is to provide an operator that willexert a constant push on the storm sash directly from the window easing,through its entire opening movement, and exert a constant pull on thestorm sash that is directly toward the window frame throughout itsentire closing movement. This direct push on the storm sash is highlyimportant during the the initial opening movement of the storm sash tostart the same from its seat in the window casing, and the direct pullon the storm sash during the finalv closing movement thereof is alsohighly important to draw the storm sash onto its seat.v

A further object of the invention is to rovide a storm sash operatorthat will firmy hold sueh a sash in position whether closed, open, o-rin an intermediate position, and which operator may be quie (ly andeasily attached to or detached from the inside sliding window sash.

A still further object of the invention is to insure that the storm sashmay never be neglectfully left open when the inside sliding window sashis closed.

A still further object of the invention is to provide an extremelysimple storm sash operator of comparatively small cost to manufacture,and, at the same time, very positive in its action.

To the above end, generally stated, the invention consists of the noveldevices and combinations of devices hereinafter described and defined inthe claims.

In the accompanying drawings, which illustrate the invention, likecharacters indicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a fragmentary View of a window frame 1n which 1s mounted aninside sliding window sash anda swinging storm sash, to which sa-shesthe invention is applied;

Fig. 2 isa view corresponding to Fig. 1 wlth the exception that the twosashes are open; and

Fig. 3 is a fragmentary detail view with some parts sectioned on theline 3--3 of Fig. 1, on an enlarged scale.

The numeral 4 indicates a window frame, as an entirety, with theexception of its water table 5 and the parting stri 6 between the upperand lower vertical siding window sashes, onl the latter of which isshown, and indlcated by the numeral 7 This window frame 4 has an outsidecasing 8 which-affordsa stop against which a storm sash 9 is seated,when closed, and which storm sash is attached at its upper end to saideasing by the customary separable hinges, not shown, for outwardswinging movement. The lower horizontal edges of the two sashes 7 and 9are beveled to snugly fit against the water table 5 when said sasliesare closed. The parts thus far described are all of standardconstruction and have been illustrated simply for the purpose of showngthe invention applied in working posiion.

Referring now in detail to the improved automatic storm sash operator,the numeral 10 indicates a strong flat bar of spring metal, having inone of its ends an elongated eye 11 through which is inserted a staple12 driven into one of the stiles of the storm sash 9 to pivotallyconnect said bar thereto. A wearing plate 13 is interposed between thestorm sash 9 and bar 10 to prevent said bar from cutting into the stormsash, and which wearing plate is held in position by forming thereinholes through which the legs of the staple are inserted before drivingthe same into the storm sash and by one or two screws.

In the other end of the bar 10 is an e e 14 arranged to receive aninverted ook, 15, screwed into the window sash 7 directly below thestaple 12, to detachabl connect said bar 10 to the window sash. wearingplate 16, through which the hook 15 extends,

is secured to thcwndow sash 7 by wood screws 17. To prevent the bar 10from becoming accidentally detached from the hook 15, there is mountcdon the stem of s aid hook, -between the bar 10 and the wearing plate 16,a swinging guard 18 which extends horizontally under the hook 15 andvertically outward of and above the free end thereof, as best shown inFig. 1.

Attached to the window casing 8, just below the staple 12 when the stormsash 9 is closed, is a fulcrum 19 on which the bar 10 slides endwiseduring the opening and closing movements of the sashes 7 and 9. Duringthe openingand closing movements of the window sash 7, the bar 10 bendsin a curve over the fulcrum 19, and the section thereof betweensaidvfulcrum and the window sash 7, is in a vertically disposedposition, and the section thereof between said fulcrum and the stormsash 9 is in a horizontally disposed position and thereby lauses saidbar to impart a direct push on ilhe storm Sash 9 away from the windowframe, and a direct pull on the storm sash toward the window frame, Whenthe window sash 7 is open, as shown in Fig. 2, the Ibar 10 is in ahorizontal posit-ion above the fulcrum 19, and when said sash is closed,the bar 10 is bent over the fulcrum 19 in the form of a bow and therebyis placed under sutli'cient tension to hold the storm sash 9 closed andtightly seated in the window frame, as shown in Fig. 1. As previouslystated, a direct push on the storm sash 9 away from the window frame 4is highly important to force the window sash 7 from its seat; andlikewise, a direct pull on the storm sash 9, toward the window frame,during its closing movement is highly important to draw the storm sashonto its seat.

It may be here stated that the tendency of the spring bar 10 is tostraighten, and hence will, at all times, yieldingly bear upon thefulcrum 19 except when the windows are in an open position as shown inFig. 1, and at which time the .bar 10 is straight.

Formed with the attaching plate of the fulcrum 19 is a stop lug 20 forthe bar 10 in case the same is lifted from said fulcrum.

lThe plate. with which the fulcrum 19 and stop lug 20vare formed affordsa wearing surface for the -bar 10 to prevent the same from cutting the`window casing 8. In place of forming the bar 10 from a piece of flatmetal, the same may be formed from a piece of relatively heavy springwire. While only one of the automatic storm sash operators has beenshown in the drawings, it is, of course, understood that there will betwo employed, in actual usage, on each storm sash.

After the staple 12, wearing plate 13 and bar 10, held by said staple,are once secured to the storm sash 9 and the fulcrum 19 and stop lug 20secured to the window casing 8,

and the Wearing plate 16, hook 15 and guard 18 secured to the windowsash 7, said parts are permanent and ldo not have to be changed. Inapplying the storm sash 9 to the Window frame 4, it is only necessary,after the same is properly hung, to open said sashes,substantially asindicated in Fig. 2, so that the bar 10 may be extended between thelfulorum 19 and stop lug 2O Without bending, and then interlock its freeend with the hook 15, after swinging the guard 18 into an inoperativeposition, as indicated by broken lines in Fig. 3. To detach the bar 10from the hook 15, during the removal of the storm sash from the windowframe, like operations are required except that the bar 10 is detachedfrom the hook 15 after the guard 18 has been moved into an inoperativeposition. When the storm sash 9 is removed from the windo-w frame 4, thebar 10 will lay flap against said storm sash thus permitting a pluralityof storm sashes, equipped with my improved operator, to' be stored, inclose contact, the one with the other.

I do not wish tobe confined to the precise manner `of mounting thefastening devices illustrated herein or to the shape of the operatingbar, as in various ways the details may be modified and still be withinthe scope of my invention.

The above described invention has', in actual usage, proven highlyefficient for the purpose had in view.

What I claim is:

1. The combination with a window frame, a sliding sash and a swingingsash mounted in the window frame, of means operated by the sliding sashduring its opening movement. to impart a constant dirert push on thestorm sash away from a fixed point on the window frame to open the stormsash.

2. The combination with a window frame, a slidingsash and a swingingsash mounted in the window frame, of means operated by the sliding sashduring its closing movement to impart a constant direct pull on thestorm sash toward a Hxed point on the window frame to close the stormsash.

3. The combination with a window frame, a sliding'sash and a swingingsash mounted in the window frame, of means operated by the sliding sashduring its opening and .closing movements to impart, respectively, aconstant direct push on the storm sash away from a fixed point on thewindow frame to open the same, and a constant direct pull on the stormsash toward ay fixed point on the window frame to close the storm sash.

4. The combination with a window frame, a sliding s ash and a swingingsash mounted in the window frame, of an operating bar attached to saidsashes, and a fulcrum on the window frame for the operating 'bar andarranged to cause the operating bar to impart a constant direct push onthe' storm sash away from the Window frame to open the same during theopening movement of the window sash.

5. The combination with a Window frame, a sliding sash and a swingingsash mounted in the Window frame, of an operating bar attached to saidsashes, and a fulcrum on the Window frame for the operating bar andarranged to cause the operating bar to impart a constant direct pull onthe storm sash toward the Window frame to ciose the same during theclosing movement of the Window sash.

6. The combination with a Window frame, a slidingsash and a swingingsash mounted in the Window frame, of an operating bar attached to saidsashes7 and a fuicrum on the Window frame for the operating bar andarranged to cause the openating bar to impart a constant direct push onthe storm sash away from the Window frame to open the same during theopening movement of the Window sash and to impart a constant direct pui]on the Storm sash tow-ard the window frame to close the same during theclosing movement. of the Window Sash.

7. The structure defined in claim 6 in which the operating bar is in theform of a. spring bar.

8. The structure deiined in claim 6 in which the fuicrum is arranged topiace the operating bar under tension When the Window sash is closed tohold the storm sash closed.

9. The structure defined in claim 6 in which the operating bar isprimarily substantially straight and in the form of a spring bar.

10. The structure defined in claim' 6 in which the operating bar isdetachably attached to the Window sash.

11. The structure defined in claim 6 inv mounted in the Window frame,ofan operatf' ing bar attached to said sashes, and opposing fulcrums onthe Window fname Jfor the operating bar and arranged to cause theoperating bar to impart a constant direct push on the storm sash awayfrom the Wind-ow frame to open the same during the opening movement ofthe Window sash.

13. The combination with a window frame, a sliding sash anda swingingsash mounted in the window frame, of an operating bar attached to saidsashes, and opposing fulcrums on the Windowv fra-me Afor the operatingbar and arranged to cause the operating bar to impart a constant directpull on the storm sash toward the Window frame to close the same duringthe closing movementof the Window sash.

14. The combination with a Window frame, .a sliding sash and a swingingsash mounted in the window frame, of an operating bar attached to saidslashes, and opposing fulcrums on the Window frame for the operating bar`and arranged to cause the operating bar to impart a constant directpush on the storm sash away from the Window frame to open the'sameduring the opening movement of the window sash and to impart a constantdirect pull on the storm sash toward the Window frame to close the sameduring the closing movement of the Window sash.

In testimony whereof I affix my signature.

CHARLES W. KNIGHT.

